WO2017190182A1 - Racloir de bande - Google Patents

Racloir de bande Download PDF

Info

Publication number
WO2017190182A1
WO2017190182A1 PCT/AU2017/050374 AU2017050374W WO2017190182A1 WO 2017190182 A1 WO2017190182 A1 WO 2017190182A1 AU 2017050374 W AU2017050374 W AU 2017050374W WO 2017190182 A1 WO2017190182 A1 WO 2017190182A1
Authority
WO
WIPO (PCT)
Prior art keywords
piston
assembly
cylinder
scraper
conveyor belt
Prior art date
Application number
PCT/AU2017/050374
Other languages
English (en)
Inventor
Alex DELMONI
Original Assignee
Delmoni Alex
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from AU2016901665A external-priority patent/AU2016901665A0/en
Application filed by Delmoni Alex filed Critical Delmoni Alex
Priority to BR112018072690A priority Critical patent/BR112018072690A2/pt
Priority to AU2017260567A priority patent/AU2017260567B2/en
Priority to CA3022486A priority patent/CA3022486A1/fr
Priority to US16/099,040 priority patent/US10829311B2/en
Publication of WO2017190182A1 publication Critical patent/WO2017190182A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G45/00—Lubricating, cleaning, or clearing devices
    • B65G45/10—Cleaning devices
    • B65G45/12—Cleaning devices comprising scrapers
    • B65G45/16—Cleaning devices comprising scrapers with scraper biasing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
    • F15B1/02—Installations or systems with accumulators
    • F15B1/04—Accumulators
    • F15B1/045—Dead weight accumulators

Definitions

  • the disclosure relates to materials handling, and more particularly to a tensioning arrangement for a conveyor belt cleaner.
  • a tensioning arrangement for a scraper for a conveyor belt comprising a hydraulic assembly that acts on the scraper to maintain a portion of the scraper in operative contact with the conveyor belt, the hydraulic assembly configured such that weight applied to a portion of the hydraulic assembly effects application of pressure on fluid contained within the hydraulic assembly.
  • a hydraulic assembly for maintaining a belt scraper in operative contact with a conveyor belt during use may have benefits over alternative tensioning systems such as spring or counterweight based tensioning systems.
  • the hydraulic assembly maintains tip pressure over the required maintenance interval.
  • the hydraulic system may provide a more consistent pressure than alternatives. When the blades wear the displacement of the springs results in a reduction in the applied blade tip performance. In contrast, hydraulic tension is not reduced through wear of the blades. Similarly fixed bolt tensioners wear, losing tip pressure.
  • the hydraulic tensioning assembly also provides capacitance within the system which can be beneficial in materials applications.
  • scrapers can result in poor performance, damage to belts, abrasion from ore, contamination of bearings , eccentric loading of idler, damage to pulleys and additional labour and clean up.
  • Known spring style scrapers can suffer from product build up within the springs and spillage engulfment of the springs . When dried out this can concrete and lock up the spring movement rendering the scraper inoperable.
  • a conveyor belt scraper assembly comprising a scraper blade to contact a conveyor belt to remove materials from a conveyor belt while the conveyor belt is in use; and a hydraulic tensioning arrangement which biases the scraper blade into operative contact with the conveyor belt.
  • the hydraulic tensioning arrangement comprises a single-acting piston and cylinder assembly oriented substantially vertically and having a dead-weight accumulator biasing the piston and cylinder assembly into a return configuration.
  • Figure 1 is a plan view of one embodiment of a hydraulic assembly of the present disclosure
  • Figure 2 is a plan view of one embodiment of a hand pump for use with a hydraulic assembly such as that in Figure 1;
  • Figure 3 is a plan view of a second embodiment of a hydraulic assembly of the present disclosure.
  • Figure 4 is a plan view of a second embodiment of a hand pump for use with a hydraulic assembly such as that in Figure 3;
  • Figure 5 is a cross sectional view of a piston and cylinder assembly of one embodiment of the disclosure.
  • Figure 6 is a side view of weight retainer of one embodiment of the disclosure
  • Figure 7 is a cross-sectional view of the weight retainer of Figure 6;
  • Figure 8 is a perspective view of the weight retainer of Figure 6.
  • a tensioning arrangement for a scraper for a conveyor belt Disclosed in some forms is a tensioning arrangement for a scraper for a conveyor belt, the tensioning
  • the hydraulic assembly includes a holding piston and cylinder assembly, the holding piston and cylinder assembly being single-acting, wherein weight applied to one of the piston or cylinder applies pressure on fluid contained within the hydraulic assembly.
  • the holding piston and cylinder assembly is in fluid communication with at least one scraper piston and cylinder assembly that acts upon the scraper to maintain a portion of the scraper in operative contact with the conveyor belt.
  • the holding piston and cylinder assembly is configured to be positioned in use in a substantially vertical orientation, the cap end of the cylinder being positioned lower than the rod end of the cylinder and wherein weight is applied to the piston at a point outside the cylinder to bias the piston into a return configuration.
  • the holding piston and cylinder assembly further includes a weight retainer having a piston engagement portion that engages the piston; a body that extends downwardly from the piston engagement portion and defines an interior cavity in which the piston and at least a portion of the cylinder is sheathed; and, a weight locator to allow application of weight to the weight retainer, the weight downwardly biasing the weight retainer and therefore biasing the piston into a return configuration .
  • the weight retainer is shaped to limit ingress of material into the holding piston and cylinder assembly.
  • the tensioning assembly is configur such that initial fluid pressure is provided by a hand pump .
  • a conveyor belt scraper assembly comprising a scraper blade to contact a conveyor belt to remove materials from a conveyor belt while the conveyor belt is in use; a hydraulic tensioning assembly biasing the scraper blade into operative contact with the conveyor belt.
  • the hydraulic tensioner comprises a single-acting piston and cylinder assembly oriented substantially vertically and having a dead-weight
  • the single-acting piston and cylinder assembly is oriented such that the cap end is positioned lower than the rod end and weight is placed on the piston to bias the piston and cylinder assembly into a return configuration .
  • the assembly further comprises a shea acting to sheath the rod end of the cylinder throughout movement of the piston.
  • the sheath is engaged with the piston
  • weight is retained by the sheath to bias the piston and cylinder assembly into a return configuration.
  • the weight retainer is engaged with or forms part of the sheath. It is known to utilise a scraper to clear a conveyor belt. This clearing of the conveyor belt is ordinarily performed in the vicinity of the discharge pulley and is designed to prevent material accumulations on the belt which will result in idler damage and undesired material build-up alongside the belt path. Efficient scraping of the belt surface requires that a scraper blade is angled and pressed against the belt with sufficient force to dislodge resistant material such as slurries and sticky materials . This can be difficult to achieve where the belt has an uneven surface or a varying belt thickness.
  • conveyor belt scrapers also known as belt cleaners are of a fixed bolt tensioner, a swing arm direct counterweight or a spring design to provide the required forces for the belt scraper tips to maintain the correct contact with the belt and the resulting removal of residue product.
  • the present disclosure provides an alternative.
  • the main feeder conveyor belts supply material to a selection of temporary storage feeder bins .
  • the main feeder conveyor travels to the top of the bins which are adjacent to each other.
  • the conveyor feeder mobile structure is commonly known as a "shuttle" which travels horizontally to feed the material into the selected bin.
  • the upper area of the bins & shuttle referred to above is minimal & inaccessible unless the plant is shut down. With this access restriction, maintenance of the shuttle and components is not possible during production periods . In most cases the only services supplied to the hydraulic assembly and supplied to the shuttle are water for sprays and high voltage to the head pulley belt drive if the drive is on the shuttle. Therefore the capacitance of the assembly is significant.
  • the belt scraper of the present disclosure is in some aspects, autonomous and self adjusting with no external energy sources required. In some forms it may provide a constant pressure achieved for a long period or over the service life of the blades. In some forms, the applied load may be balanced on both sides of the pole. In some forms the system characteristics may have inherent dampening. This reduces blade chatter and bushing/slide wear. In some forms the blade wear is predictable
  • the blade force doesn't have to be re-commissioned after each consumable rebuild. In some forms the
  • counterweight can be modified in a safe location outside of guarding. This reduces access issues.
  • t stops are incorporated to limit the system travel to prevent any risks of exceeding the blade wear limits.
  • the tensioning assembly 1 for a conveyor belt scraper (not illustrated) .
  • the tensioning assembly 1 is hydraulic and comprises a holding piston and cylinder assembly 2 in fluid communication with a plurality of scraper piston and cylinder assemblies 4 via hosing 3.
  • hosing 3 In the illustrated form there are two scraper piston and cylinder assemblies 4 which engage with the scraper to maintain it in
  • the holding piston and cylinder assembly 2 is a single-acting assembly which in use is oriented in a substantially vertical orientation.
  • the holding piston and cylinder assembly comprises a piston 6 and cylinder 7.
  • the cylinder 7 is oriented such that the cap end 9 is located downwardly with respect to the rod end 10. Fluid is retained in the cylinder 7 between the cap end 9 and the piston 6.
  • the piston 6 includes a rod 12 which extends from the rod end 10 of the cylinder 7.
  • the rod 12 is moveable between an extended configuration in which the rod extends from the rod end 30 of the cylinder 7 and a return configuration in which more of the rod 12 is located within the cylinder 7.
  • the piston 6 is biased into the return configuration by means of weights on which gravity acts to move the piston 6 downwardly with respect to the cylinder 7.
  • the weights bias the piston and cylinder assembly into contraction, that is into the return configuration.
  • the piston 6 is engaged with a weight retainer 14 which extends over the piston 6 and engages the piston 6 at an upper piston engagement end 15.
  • the weight retainer 14 further includes a sheath body 16 which extends downwardly from the piston engagement end 15. In use, the sheath body acts to cover the rod end 10 of the cylinder 7 throughout the rod' s motion into the extended configuration. This limits ingress of material into the rod end of the cylinder and extends the life of the cylinder.
  • Weights 17 are engaged with the weight retainer 14 by means of a weight engagement end 18 and bias the piston into the return position.
  • the tensioning assembly 21 is hydraulic and comprises a holding piston and cylinder assembly 22 in fluid communication with a plurality of scraper piston and cylinder assemblies 24 via hosing 23. In the illustrated form there are two scraper piston and cylinder assemblies 24 which engage with the scraper to maintain it in operative contact with the conveyor belt.
  • the holding piston and cylinder assembly 22 is a single-acting assembly which in use is oriented in a substantially vertical orientation.
  • the holding piston and cylinder assembly comprises a piston 26 and cylinder 27.
  • the cylinder 27 is oriented such that the cap end 29 is located upwardly with respect to the rod end 30. Fluid is retained in the cylinder 7 between the rod end 30 and the piston 26.
  • the piston 26 includes a rod 32 which extends from the rod end 30 of the cylinder 27.
  • the rod 32 is moveable between an extended configuration in which the rod extends from the rod end 30 of the cylinder 27 and a return configuration in which more of the rod 32 is located within the cylinder 27.
  • the piston 26 is biased into the extended
  • the piston 26 is engaged with weights 35.
  • the weights 35 extend downwardly from the rod end 30 and put pressure on the fluid.
  • Weights 17 are engaged with the piston rod.
  • the hand pump 40 which is configured to pump fluid into the hydraulic assembly.
  • the hand pump 40 comprises a reservoir 42 and an actuator 43.
  • the holding piston and cylinder assembly is a single-acting assembly which in use is oriented in a substantially vertical orientation.
  • the holding piston and cylinder assembly comprises a piston 56 and cylinder 57.
  • the cylinder 57 is oriented such that the cap end 59 is located downwardly with respect to the rod end 60. Fluid is retained in the cylinder 7.
  • the piston 56 includes a rod 62 which extends from the rod end 65 of the cylinder 67.
  • the rod 62 is moveable between an extended configuration in which the rod extends from the rod end 60 of the cylinder 57 and a return configuration in which more of the rod 62 is located within the cylinder 57.
  • the piston 56 is biased into the return configuration by means of weights on which gravity acts to move the piston 56 downwardly with respect to the cylinder 57.
  • the piston 56 is engaged with a weight retainer 64 which extends over the piston 56 and engages the piston 56 at an upper piston engagement end 65.
  • the weight retainer 64 further includes a sheath body 66 which extends downwardly from the piston
  • the sheath body acts to cover the rod end 60 of the cylinder 57 throughout the rod' s motion into the extended configuration. This limits ingress of material into the rod end of the cylinder and extends the life of the cylinder.
  • Weights 67 are engaged with the weight retainer 64 by means of a weight engagement end 68.
  • a weight retainer 84 for use with a piston and cylinder assembly in which the piston and cylinder is inverted such that the cap end is located upward of the rod end.
  • the weight retainer comprises a piston engagement end 85 which engages the piston shaft in its shaft cavity 89.
  • the body 86 or sheath of the retainer extends downwardly from the piston engagement end. It extends as a piping section with an internal cavity such that the piston and a portion of the cylinder can be located in them.
  • Weights can be located on a weight retention platform 88 at the base of the weight retainer 84. These bias the weight retainer downwardly.
  • Linear transmission may be included to record scraper wear.
  • pressure transmission may be included to record tip tension force.
  • a spike in pressure may show an issue or change in thickness on the belt.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Drives For Endless Conveyors (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Structure Of Belt Conveyors (AREA)

Abstract

L'invention concerne un système de mise sous tension pour un racloir pour une bande transporteuse, le système de mise sous tension comprenant un ensemble hydraulique qui agit sur le racloir pour maintenir une partie du racloir en contact fonctionnel avec la bande transporteuse, l'ensemble hydraulique étant configuré de sorte que le poids appliqué à une partie de l'ensemble hydraulique provoque l'application d'une pression sur un fluide contenu à l'intérieur de l'ensemble hydraulique.
PCT/AU2017/050374 2016-05-06 2017-04-24 Racloir de bande WO2017190182A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BR112018072690A BR112018072690A2 (pt) 2016-05-06 2017-04-24 disposição de tensionamento para um raspador para uma esteira transportadora, e conjunto raspador de esteira transportadora
AU2017260567A AU2017260567B2 (en) 2016-05-06 2017-04-24 Belt scraper
CA3022486A CA3022486A1 (fr) 2016-05-06 2017-04-24 Racloir de bande
US16/099,040 US10829311B2 (en) 2016-05-06 2017-04-24 Belt scraper

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2016901665A AU2016901665A0 (en) 2016-05-06 Belt Scraper
AU2016901665 2016-05-06

Publications (1)

Publication Number Publication Date
WO2017190182A1 true WO2017190182A1 (fr) 2017-11-09

Family

ID=60202500

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2017/050374 WO2017190182A1 (fr) 2016-05-06 2017-04-24 Racloir de bande

Country Status (5)

Country Link
US (1) US10829311B2 (fr)
AU (1) AU2017260567B2 (fr)
BR (1) BR112018072690A2 (fr)
CA (1) CA3022486A1 (fr)
WO (1) WO2017190182A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022192960A1 (fr) * 2021-03-17 2022-09-22 Autonomous Tensioning System Pty Ltd Agencement de nettoyage de transporteur

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191303302A (en) * 1913-02-08 1913-11-27 Bartlett Wrangham Winder Improvements in and relating to Hydraulic Accumulators.
DE390701C (de) * 1923-04-10 1924-02-22 J M Lehmann Fa Druckfluessigkeitskraftsammler
US1582985A (en) * 1924-03-31 1926-05-04 Hanel Paul Theodor Hydraulic accumulator
US4189046A (en) * 1977-10-13 1980-02-19 Ward Charles W Conveyor belt cleaning apparatus
JPS5837301A (ja) * 1981-08-28 1983-03-04 Hitachi Ltd 慣性力吸収装置付の重錘式アキユムレ−タ−
DE3511277A1 (de) * 1985-03-28 1986-10-09 Klaus-Dieter 6689 Welschbach Kirchner Reinigungsvorrichtung fuer foerderbandanlagen
WO1993004959A1 (fr) * 1991-08-30 1993-03-18 Dolan Troy D Procede et dispositif de nettoyage de bandes transporteuses
US5248026A (en) * 1992-07-22 1993-09-28 Morefield Allen J Conveyor belt scraper mechanisms
DE19926184A1 (de) * 1999-06-09 2000-12-14 Schwarze Hans Otto Bandfördervorrrichtung o. dgl.
DE102007007337A1 (de) * 2007-02-14 2008-08-21 Robert Bosch Gmbh Hydraulisches System zur Rückgewinnung von frei werdender Energie

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5837301B2 (ja) 1975-09-06 1983-08-15 フジクラカセイ カブシキガイシヤ フオトクロミツクカゴウブツノ セイゾウホウ
US4520917A (en) * 1982-03-03 1985-06-04 Thomas J. Wright Conveyor belt cleaning methods and apparatuses therefor
US5007524A (en) * 1988-08-16 1991-04-16 Morefield Allen J Apparatus and method for safely actuating a belt scraper mechanism with pressurized water
KR100945119B1 (ko) * 2006-09-01 2010-03-02 미쓰비시덴키 가부시키가이샤 승객 컨베이어
FR2923823B1 (fr) 2007-11-21 2010-10-08 Centre Nat Rech Scient Aerogels de nanotubes de carbone

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191303302A (en) * 1913-02-08 1913-11-27 Bartlett Wrangham Winder Improvements in and relating to Hydraulic Accumulators.
DE390701C (de) * 1923-04-10 1924-02-22 J M Lehmann Fa Druckfluessigkeitskraftsammler
US1582985A (en) * 1924-03-31 1926-05-04 Hanel Paul Theodor Hydraulic accumulator
US4189046A (en) * 1977-10-13 1980-02-19 Ward Charles W Conveyor belt cleaning apparatus
JPS5837301A (ja) * 1981-08-28 1983-03-04 Hitachi Ltd 慣性力吸収装置付の重錘式アキユムレ−タ−
DE3511277A1 (de) * 1985-03-28 1986-10-09 Klaus-Dieter 6689 Welschbach Kirchner Reinigungsvorrichtung fuer foerderbandanlagen
WO1993004959A1 (fr) * 1991-08-30 1993-03-18 Dolan Troy D Procede et dispositif de nettoyage de bandes transporteuses
US5248026A (en) * 1992-07-22 1993-09-28 Morefield Allen J Conveyor belt scraper mechanisms
DE19926184A1 (de) * 1999-06-09 2000-12-14 Schwarze Hans Otto Bandfördervorrrichtung o. dgl.
DE102007007337A1 (de) * 2007-02-14 2008-08-21 Robert Bosch Gmbh Hydraulisches System zur Rückgewinnung von frei werdender Energie

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022192960A1 (fr) * 2021-03-17 2022-09-22 Autonomous Tensioning System Pty Ltd Agencement de nettoyage de transporteur

Also Published As

Publication number Publication date
CA3022486A1 (fr) 2017-11-09
US20190177093A1 (en) 2019-06-13
BR112018072690A2 (pt) 2019-02-19
AU2017260567B2 (en) 2023-03-02
US10829311B2 (en) 2020-11-10
AU2017260567A2 (en) 2018-12-06
AU2017260567A1 (en) 2018-11-22

Similar Documents

Publication Publication Date Title
US6581754B2 (en) Conveyor belt cleaner
AU2013262354B2 (en) Method of device for converting rotary motion to reciprocating percussion motion and device for converting rotary motion to reciprocating percussion motion that implements the method
AU2017260567B2 (en) Belt scraper
CN101065304A (zh) 恒角恒压传送带清洁器及张紧器
CN111776618B (zh) 一种物料输送装置
US9027744B1 (en) Center loading assembly for a conveyor belt
CN107923434B (zh) 用于提取器系统的轴承组件
US5826703A (en) Motionless conveyor belt idler system
WO2016116940A1 (fr) Racleur à réglage automatique
US20160250643A1 (en) Sealing ring for gyratory crusher
CN105966873A (zh) 一种皮带输送机弹性清扫器
KR101371395B1 (ko) 컨베이어벨트의 클리닝 장치
KR101122282B1 (ko) 비접촉식 벨트 클리너
CN111392371A (zh) 一种物料带式输送机振动清扫器
US991433A (en) Bucket conveyer.
US20190368598A1 (en) Automatic Lubrication Arrangement For A Hoist
US20050023112A1 (en) Track system for tow-line conveyors
KR102032638B1 (ko) 컨베이어용 마모 방지 장치
KR101300179B1 (ko) 브러쉬 클리너의 높이 조절 장치
CN102803104A (zh) 关于输送器的可逆张紧设备
CN201501668U (zh) 重型带式输送机头部双调节式清扫器
RU178588U1 (ru) Вырезающее устройство щебнеочистительной машины
CN216234351U (zh) 皮带运输机清扫器及皮带运输机
US11958697B2 (en) Tolerance adjuster and wear device for sortation system
KR102339813B1 (ko) 컨베이어 벨트 클리너

Legal Events

Date Code Title Description
DPE1 Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101)
ENP Entry into the national phase

Ref document number: 3022486

Country of ref document: CA

NENP Non-entry into the national phase

Ref country code: DE

REG Reference to national code

Ref country code: BR

Ref legal event code: B01A

Ref document number: 112018072690

Country of ref document: BR

ENP Entry into the national phase

Ref document number: 2017260567

Country of ref document: AU

Date of ref document: 20170424

Kind code of ref document: A

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17792281

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 112018072690

Country of ref document: BR

Kind code of ref document: A2

Effective date: 20181105

122 Ep: pct application non-entry in european phase

Ref document number: 17792281

Country of ref document: EP

Kind code of ref document: A1